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3 years ago

What is the answer to ( 5- t ) +(3t+2)

Mathematics

2 answers:

koban [17]3 years ago

8 0

(7+2t) is the answer

guajiro [1.7K]3 years ago

6 0

This question is asking you to simplify the expression by combining like terms. That is the only way you will be able to "solve" the question.

Start by rewriting out the question to make your work neat and organized.

(5 - t) + (3t + 2)

Combine like terms.

Like terms are terms that have the same variable or variables attached to them (say for example 4x and 7x, 4mn and 6mn) and the same powers attached to them (say for example x^2 and y^2, j^3 and k^3).

In the question, the like terms are identified as 5 and 2 (first pair of like terms) and -t and 3t (second pair of like terms).

You want to solve the question by combining like terms, so "combine" (add/subtract) the like terms that we just identified.

Start by adding 5 and 2 (first pair) then add -t and 3t. After combining like terms, you will get the answer of 7 + 2t.

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6) Two boats set off from X at the same

lord [1]

Answer:

The distance between the two boats after 2.5 hours is 57 m.

Step-by-step explanation:

The distance covered by each boat after 2.5 hours are:

speed = $\frac{distance}{time}$

distance = speed x time

For boat A, speed = 14 km/h and time = 2.5 hrs.

So that,

distance = 14 x 2.5

= 35 km

For boat B, speed = 18 km/h and time = 2.5 hrs.

So that,

distance = 18 x 2.5

= 45 km

The distance between the two boats after travelling 2.5 hours can be determined by applying the cosine rule. Let the distance be represented by x, so that:

$a^{2}$ = $b^{2}$ + $c^{2}$ - 2bc Cos A

$x^{2}$ = $45^{2}$ + $35^{2}$ - 2(45 x 35) Cos $90^{o}$

= 2025 + 1225 - 3150 (0)

= 3250

x = $\sqrt{3250}$

= 57.0088

x = 57.0 m

The distance between the two boats after 2.5 hours is 57 m.

4 0

3 years ago

Plssss it’s due in 5 min answer plsss

Nesterboy [21]

Y=11x+2 should be you answer for the slope

8 0

3 years ago

Inequality word problem 7 less than -2 times a number X is greater than or equal to 41

Lady bird [3.3K]

Less than means minus so 7 less than means -7

-2 times a number x means -2 times x or -2x

is greater than or equal to means >

41=41

so
-7+-2x>41
-2x-7>41
add 7 to both sides
-2x>48
divide both sides by -2
remember to flip sign since divided by negative
x<-96

5 0

3 years ago

Which two inequalities to compare |-5| and 4?

lilavasa [31]

Answer:

|-5|>4

Step-by-step explanation:

Negative 5 in absolute value is 5 since any number in absolute value turns out positive or at the very least 0. 5 is greater than 4, so |-5|>4.

7 0

3 years ago

How to get the volume of l blocks

spayn [35]

To get volume, you multiply the length of the block by the width by the height. LxWxH

7 0

3 years ago